The Diamondbacks have designated southpaw Taylor Guilbeau for assignment, as per a team announcement. The move creates roster space for Joakim Soria, whose deal with the club is now official. Guilbeau has only been a member of the D’Backs organization for a few months, after Arizona claimed him off waivers from the Mariners in October.
The 27-year-old has pitched in each of the last two seasons, posting a 2.70 ERA over 20 innings out of Seattle’s bullpen despite only recording 10 strikeouts and almost matching that total with nine walks. However, Guilbeau did deal with a shoulder problem last season, which could have limited his effectiveness.
Originally a 10th-round pick for the Nationals in 2015, Guilbeau posted much better strikeout totals (20.33K%) and control (6.33BB%) over 347 career minor league innings, while continually posting grounder rates well above the 50 percent threshold. Guilbeau has been a full-time reliever since the start of the 2018 season, so with this intriguing skillset, it’s possible the Diamondbacks could lose him on a DFA claim. If no rival team jumps, Guilbeau can remain in the system as a potential option for a D’Backs bullpen that is short on lefty hurlers.

Of course, the 32-year-old Richards also cannot be called an entirely sure thing, as he is less than two years removed from a Tommy John surgery that wiped out much of his 2019 season. Richards did post some solid results in 2020, however, delivering a 4.03 ERA, 21.6K%, and 13.6K-BB% over 51 1/3 innings for the Padres, starting 10 games before being moved to the bullpen for his final four regular-season outings in anticipation for the playoffs.
This is the second contract extension signed by Preller since he was originally hired by the team in August 2014, and his previous deal was set to expire after the 2022 season. Clearly the Padres wanted to act quickly in committing to an executive who, despite a lot of ups and downs, now seems to have positioned San Diego to contend for the better part of the coming decade.